97909012 has 6 divisors (see below), whose sum is σ = 171340778. Its totient is φ = 48954504.

The previous prime is 97909003. The next prime is 97909013. The reversal of 97909012 is 21090979.

It can be written as a sum of positive squares in only one way, i.e., 93431556 + 4477456 = 9666^2 + 2116^2 .

It is a super-2 number, since 2×97909012² = 19172349261632288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97909013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12238623 + ... + 12238630.

Almost surely, 2^97909012 is an apocalyptic number.

It is an amenable number.

97909012 is a deficient number, since it is larger than the sum of its proper divisors (73431766).

97909012 is a wasteful number, since it uses less digits than its factorization.

97909012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24477257 (or 24477255 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 37.

The square root of 97909012 is about 9894.8982814378. The cubic root of 97909012 is about 460.9008998621.

The spelling of 97909012 in words is "ninety-seven million, nine hundred nine thousand, twelve".